Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2015-7835

The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.

Published

2015-10-30T15:59:04.747

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.2 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-20
    CWE-264
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System xen xen 3.4.0 Yes
Operating System xen xen 3.4.1 Yes
Operating System xen xen 3.4.2 Yes
Operating System xen xen 3.4.3 Yes
Operating System xen xen 3.4.4 Yes
Operating System xen xen 4.0.0 Yes
Operating System xen xen 4.0.1 Yes
Operating System xen xen 4.0.2 Yes
Operating System xen xen 4.0.3 Yes
Operating System xen xen 4.0.4 Yes
Operating System xen xen 4.1.0 Yes
Operating System xen xen 4.1.1 Yes
Operating System xen xen 4.1.2 Yes
Operating System xen xen 4.1.3 Yes
Operating System xen xen 4.1.4 Yes
Operating System xen xen 4.1.5 Yes
Operating System xen xen 4.1.6.1 Yes
Operating System xen xen 4.2.0 Yes
Operating System xen xen 4.2.1 Yes
Operating System xen xen 4.2.2 Yes
Operating System xen xen 4.2.3 Yes
Operating System xen xen 4.3.0 Yes
Operating System xen xen 4.3.1 Yes
Operating System xen xen 4.3.2 Yes
Operating System xen xen 4.3.4 Yes
Operating System xen xen 4.4.0 Yes
Operating System xen xen 4.4.1 Yes
Operating System xen xen 4.5.0 Yes
Operating System xen xen 4.5.1 Yes
Operating System xen xen 4.6.0 Yes
References